CN106672844A - Hydraulic jack base convenient to repair - Google Patents
Hydraulic jack base convenient to repair Download PDFInfo
- Publication number
- CN106672844A CN106672844A CN201510765880.6A CN201510765880A CN106672844A CN 106672844 A CN106672844 A CN 106672844A CN 201510765880 A CN201510765880 A CN 201510765880A CN 106672844 A CN106672844 A CN 106672844A
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- China
- Prior art keywords
- oil
- passage
- drain tap
- shoe cream
- cream room
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
A hydraulic jack base convenient to repair comprises a one-way valve, oil return valves and a base body. The side wall of the base is provided with a plug mounting hole communicating with a channel A. The one-way valve is mounted in the plug mounting hole in a sealed mode to enable oil to only unidirectionally flow in the channel A from a buffer cavity oil discharge outlet to a working oil cavity oil inlet. Compared with the prior art, the hydraulic jack base has the following advantages that the one-way valve on the base is arranged on the side wall of the base and quite convenient to replace and wash, and an outer shell does not need to be dismounted and mounted; the side wall of the base is provided with the plug mounting hole communicating with the channel A, and the one-way valve is mounted in the plug mounting hole in a sealed mode; and the base is provided with the two oil return valves which are separately arranged on the two opposite side walls of the base, an operator can unscrew any oil return valve for unloading, and the condition that only one oil return valve exists, and accordingly operation is inconvenient under some circumstances due to the fact is avoided.
Description
Technical field
The present invention relates to hydraulic jack, particularly a kind of jack stand for being easy to keep in repair.
Background technology
Hydraulic jack is jacking apparatus common in industrial production, and Fig. 8 is a kind of structure of existing hydraulic jack, including base 4, the shell 5 on base 4, the oil cylinder 6 in shell 5 and the piston component 7 in oil cylinder 6.Shoe cream room 8 is provided between base, shell and oil cylinder, working oil chamber 9 is provided between base, oil cylinder and piston component, connected by being located at asphalt channel on base 4 between working oil chamber 9 and shoe cream room 8, the asphalt channel includes flowing to the oil inlet passage of working oil chamber from shoe cream room for hydraulic oil and for hydraulic oil the drainback passage of shoe cream room flowed back to from working oil chamber.
Fig. 9 is the structural representation of the base in Fig. 8, and the border circular areas 41 in the central authorities of base 4 are the bottom surface of working oil chamber 9, and concentric with border circular areas 41 and close to border circular areas annular regions 42 are the bottom surface of shoe cream room 8.During jacking workpiece, the fluid of shoe cream room enters working oil chamber by the oil inlet passage on base, by piston component jacking；During off-load, the fluid of working oil chamber flows back to shoe cream room by the drainback passage on base, and piston component falls.
The one-way of fluid flowing in order to ensure oil inlet passage, arranges ball type check valve 43 generally at the oil-in on the bottom surface of working oil chamber 9, fluid is unidirectionally passed through, it is impossible to reverse reflux.Ball type check valve 43 is the consumable accessory in hydraulic jack, after a period of time, the impurity in fluid be easily deposited in steel ball or the step surface that contacts with steel ball at, cause seal failure, i.e. failure of check valve.
Because check valve is located in the annular region of base, i.e. in the working oil chamber of hydraulic jack, then need to pull down on shell and oil cylinder to cleaning, replacing check valve, it is sealing between shell and base, oil cylinder and base, install again after tearing open and bother very much, and being dismounted for multiple times can affect the sealing property of seal.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, and provides a kind of jack stand be easy to and keep in repair.The check valve that it is solved on existing hydraulic jack maintenance base is wasted time and energy, the problem of high cost.
The technical scheme is that：It is easy to the jack stand for keeping in repair, including check valve, oil return valve and pedestal；Pedestal upper surface is provided with shell mounting groove, the boss outside shell mounting groove and the oil cylinder mounting groove in shell mounting groove；Region in oil cylinder mounting groove is working oil chamber bottom surface, and the annular region between shell mounting groove and oil cylinder mounting groove is shoe cream room bottom surface；Cushion chamber is provided with inside boss, cushion chamber oil-in and cushion chamber drain tap are provided with cushion chamber；Shoe cream room bottom surface is provided with shoe cream room drain tap and shoe cream room oil-in, and working oil chamber bottom surface is provided with working oil chamber oil-in and working oil chamber drain tap；Shoe cream room drain tap is connected by the passage being located in pedestal with cushion chamber oil-in, and cushion chamber drain tap is connected by the passage A being located in pedestal with working oil chamber oil-in, and working oil chamber drain tap is connected by the passage B being located in pedestal with shoe cream room oil-in；It is communicated with the side wall of pedestal to the chock plug installing hole of passage B, oil return valve is sealingly mounted in chock plug installing hole, adjusting oil return valve can make passage B block or open；
It is communicated with the side wall of pedestal to the plug installing hole of passage A, check valve is sealingly mounted in plug installing hole, so that fluid is only capable of one-way flow in passage A, circulating direction is the direction of cushion chamber drain tap to working oil chamber oil-in.
Further technical scheme is the present invention:Check valve includes plug, spring and steel ball, plug is sealingly mounted in plug installing hole, and then by including spring and steel ball closure, spring one end is contacted with plug, and the other end is contacted with steel ball, steel ball is pressed on the wall of passage A by elastic force, so as to blocking channel A, when fluid overcomes elastic force to back down steel ball, between the wall of steel ball and passage A gap is formed, passage A is opened, and fluid flows to working oil chamber oil-in from cushion chamber drain tap.
Further technical scheme is the present invention:
Working oil chamber drain tap and shoe cream room oil-in respectively have two, passage B has two, it is respectively used to connect one of working oil chamber drain tap and one of shoe cream room oil-in, another working oil chamber drain tap and another shoe cream room oil-in, chock plug installing hole has two, is respectively provided on the relative two side of base, accordingly, oil return valve has two, and each oil return valve is used for one passage B blocking of control or opens.
Further technical scheme is the present invention:
Oil return valve includes chock plug, sealing ring and block bead；Chock plug is threaded in chock plug installing hole, is sealed by sealing ring between its front end and chock plug installing hole, and its front end termination contacts with block bead, block bead is pressed on the wall of passage B, so as to blocking channel B, after chock plug is screwed out into one section, block bead is movable, and passage B is opened.
The present invention has the advantage that compared with prior art：
1st, the check valve on base is located on the side wall of base, is changed, is cleaned very convenient, without the need for dismounting shell.It is communicated with the side wall of pedestal to the plug installing hole of passage A, check valve is sealingly mounted in plug installing hole.
2nd, base is provided with two oil return valves, is respectively provided on the relative two side of base, operating personnel can turn on any one oil return valve and carry out off-load, it is to avoid because only one of which oil return valve causes unhandy situation in some cases.
Below in conjunction with figure, the invention will be further described with embodiment.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is the B-B sectional views of Fig. 1；
Fig. 4 is the structural representation of pedestal；
Fig. 5 is the C-C sectional views of Fig. 4；
Fig. 6 is the D-D sectional views of Fig. 4；
Fig. 7 is the check valve schematic view of the mounting position of the present invention；
Fig. 8 is the check valve schematic view of the mounting position of existing hydraulic jack；
Fig. 9 is the structural representation of the base in Fig. 8.
Specific embodiment
Embodiment 1：
As shown in Fig. 1～7, it is easy to the jack stand for keeping in repair, including check valve, oil return valve and pedestal；Pedestal upper surface is provided with shell mounting groove 31, the boss 32 outside shell mounting groove 31 and the oil cylinder mounting groove 33 in shell mounting groove 31；Region in oil cylinder mounting groove 33 is working oil chamber bottom surface 34, and the annular region between shell mounting groove 31 and oil cylinder mounting groove 33 is shoe cream room bottom surface 35；It is provided with inside boss 32 in cushion chamber 321, cushion chamber 321 and is provided with cushion chamber oil-in 322 and cushion chamber drain tap 323；Shoe cream room bottom surface 35 is provided with shoe cream room drain tap 351 and shoe cream room oil-in 353, and working oil chamber bottom surface 34 is provided with working oil chamber oil-in 341 and working oil chamber drain tap 342；Shoe cream room drain tap 351 is connected by the passage being located in pedestal with cushion chamber oil-in 322, cushion chamber drain tap 323 is connected by the passage A37 being located in pedestal with working oil chamber oil-in 341, and working oil chamber drain tap 342 is connected by the passage B39 being located in pedestal with shoe cream room oil-in 353；
It is communicated with the side wall of pedestal to the chock plug installing hole 40 of passage B39, oil return valve is sealingly mounted in chock plug installing hole 40, adjusting oil return valve can make passage B39 block or open；Oil return valve includes chock plug 21, sealing ring 22 and block bead 23；Chock plug 21 is threaded in chock plug installing hole 40, sealed by sealing ring 22 between its front end and chock plug installing hole 40, its front end termination contacts with block bead 23, block bead 23 is pressed on the wall of passage B39, so as to blocking channel B39, after chock plug 21 is screwed out into one section, block bead 23 is movable, and passage B39 is opened.
It is communicated with the side wall of pedestal to the plug installing hole 38 of passage A37, check valve is sealingly mounted in plug installing hole 38, so that fluid is only capable of one-way flow in passage A37, circulating direction is the direction of cushion chamber drain tap 323 to working oil chamber oil-in 341.
Check valve includes plug 11, spring 12 and steel ball 13, plug 11 is sealingly mounted in plug installing hole 38, and then including blocking on spring 12 and steel ball 13, the one end of spring 12 contacts with plug 11, the other end is contacted with steel ball 13, steel ball 13 is pressed on the wall of passage A37 by elastic force, so as to blocking channel A37, when fluid overcomes elastic force to back down steel ball 13, gap is formed between the wall of steel ball 13 and passage A37, passage A37 is opened, and fluid flows to working oil chamber oil-in 341 from cushion chamber drain tap 323.
Working oil chamber drain tap 342 and shoe cream room oil-in 353 respectively have two, passage B39 has two, it is respectively used to connect one of working oil chamber drain tap 342 and one of shoe cream room oil-in 353, another working oil chamber drain tap 342 and another shoe cream room oil-in 353, chock plug installing hole 40 has two, is respectively provided on the relative two side of base, accordingly, oil return valve has two, and each oil return valve is used for one passage B39 blocking of control or opens.
Claims (4)
1. the jack stand for keeping in repair, including check valve, oil return valve and pedestal are easy to；Pedestal upper surface is provided with shell mounting groove (31), positioned at shell mounting groove (31) boss (32) outward and the oil cylinder mounting groove (33) in shell mounting groove (31)；Region in oil cylinder mounting groove (33) is working oil chamber bottom surface (34), and the annular region between shell mounting groove (31) and oil cylinder mounting groove (33) is shoe cream room bottom surface (35)；It is provided with inside boss (32) in cushion chamber (321), cushion chamber (321) and is provided with cushion chamber oil-in (322) and cushion chamber drain tap (323)；Shoe cream room bottom surface (35) is provided with shoe cream room drain tap (351) and shoe cream room oil-in (353), and working oil chamber bottom surface (34) are provided with working oil chamber oil-in (341) and working oil chamber drain tap (342)；Shoe cream room drain tap (351) is connected by the passage being located in pedestal with cushion chamber oil-in (322), cushion chamber drain tap (323) is connected by the passage A (37) being located in pedestal with working oil chamber oil-in (341), and working oil chamber drain tap (342) is connected by the passage B (39) being located in pedestal with shoe cream room oil-in (353)；It is communicated with the side wall of pedestal to the chock plug installing hole (40) of passage B (39), oil return valve is sealingly mounted in chock plug installing hole (40), adjusting oil return valve can make passage B (39) block or open；
It is characterized in that：It is communicated with the side wall of pedestal to the plug installing hole (38) of passage A (37), check valve is sealingly mounted in plug installing hole (38), so that fluid is only capable of one-way flow in passage A (37), circulating direction is the direction of cushion chamber drain tap (323) to working oil chamber oil-in (341).
2. it is easy to the jack stand for keeping in repair as claimed in claim 1, it is characterized in that：Check valve includes plug (11), spring (12) and steel ball (13), plug (11) is sealingly mounted in plug installing hole (38), and then by including spring (12) and steel ball (13) closure, spring (12) one end contacts with plug (11), the other end is contacted with steel ball (13), steel ball (13) is pressed on the wall of passage A (37) by elastic force, so as to blocking channel A (37), when fluid overcomes elastic force to back down steel ball (13), gap is formed between the wall of steel ball (13) and passage A (37), passage A (37) is opened, fluid flows to working oil chamber oil-in (341) from cushion chamber drain tap (323).
3. it is easy to the jack stand for keeping in repair as claimed in claim 1 or 2, it is characterized in that：Working oil chamber drain tap (342) and shoe cream room oil-in (353) respectively have two, passage B (39) has two, it is respectively used to connect one of working oil chamber drain tap (342) and one of shoe cream room oil-in (353), another working oil chamber drain tap (342) and another shoe cream room oil-in (353), chock plug installing hole (40) has two, it is respectively provided on the relative two side of base, accordingly, oil return valve has two, and each oil return valve is used for one passage B (39) blocking of control or opens.
4. it is easy to the jack stand for keeping in repair as claimed in claim 3, it is characterized in that：Oil return valve includes chock plug (21), sealing ring (22) and block bead (23)；Chock plug (21) is threaded in chock plug installing hole (40), sealed by sealing ring (22) between its front end and chock plug installing hole (40), its front end termination contacts with block bead (23), block bead (23) is pressed on the wall of passage B (39), so as to blocking channel B (39), after chock plug (21) is screwed out into one section, block bead (23) is movable, and passage B (39) is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510765880.6A CN106672844A (en) | 2015-11-11 | 2015-11-11 | Hydraulic jack base convenient to repair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510765880.6A CN106672844A (en) | 2015-11-11 | 2015-11-11 | Hydraulic jack base convenient to repair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106672844A true CN106672844A (en) | 2017-05-17 |
Family
ID=58865059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510765880.6A Pending CN106672844A (en) | 2015-11-11 | 2015-11-11 | Hydraulic jack base convenient to repair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106672844A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110498361A (en) * | 2019-08-26 | 2019-11-26 | 成都道可道机械设备有限公司 | A kind of unidirectional oil inlet pipe and the jack with unidirectional oil inlet pipe |
| CN112303046A (en) * | 2020-10-29 | 2021-02-02 | 平湖东来液压工具有限公司 | Hydraulic system of automobile repair platform |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209669Y (en) * | 1994-08-26 | 1995-10-11 | 王树红 | Hand hydraulic lifting apparatus |
| CN201722100U (en) * | 2010-06-19 | 2011-01-26 | 汕头市通力机械制造有限公司 | Pneumatic hydraulic jack |
| CN102107832A (en) * | 2009-12-23 | 2011-06-29 | 陈有源 | Hydraulic jack with controllable heavy load descending speed |
| CN202030478U (en) * | 2011-04-22 | 2011-11-09 | 陈群鹤 | External jack integrated valve block structure |
| US20120006014A1 (en) * | 2008-04-29 | 2012-01-12 | Jackson George W | Multi-speed hydraulic jack |
| CN202193586U (en) * | 2011-06-28 | 2012-04-18 | 常熟通润汽车千斤顶有限公司 | Integrated type combined valve body for vertical oil jack |
| CN204454415U (en) * | 2015-02-06 | 2015-07-08 | 元根发 | A kind of jack of one-way valve seat hard closing |
| CN204549931U (en) * | 2015-04-24 | 2015-08-12 | 宜昌华益工具制造股份有限公司 | The double dynamical jack of Pneumatic and manual |
| CN205275104U (en) * | 2015-11-11 | 2016-06-01 | 衡阳市锦泰工具有限公司 | Hydraulic jack base convenient to maintenance |
-
2015
- 2015-11-11 CN CN201510765880.6A patent/CN106672844A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209669Y (en) * | 1994-08-26 | 1995-10-11 | 王树红 | Hand hydraulic lifting apparatus |
| US20120006014A1 (en) * | 2008-04-29 | 2012-01-12 | Jackson George W | Multi-speed hydraulic jack |
| CN102107832A (en) * | 2009-12-23 | 2011-06-29 | 陈有源 | Hydraulic jack with controllable heavy load descending speed |
| CN201722100U (en) * | 2010-06-19 | 2011-01-26 | 汕头市通力机械制造有限公司 | Pneumatic hydraulic jack |
| CN202030478U (en) * | 2011-04-22 | 2011-11-09 | 陈群鹤 | External jack integrated valve block structure |
| CN202193586U (en) * | 2011-06-28 | 2012-04-18 | 常熟通润汽车千斤顶有限公司 | Integrated type combined valve body for vertical oil jack |
| CN204454415U (en) * | 2015-02-06 | 2015-07-08 | 元根发 | A kind of jack of one-way valve seat hard closing |
| CN204549931U (en) * | 2015-04-24 | 2015-08-12 | 宜昌华益工具制造股份有限公司 | The double dynamical jack of Pneumatic and manual |
| CN205275104U (en) * | 2015-11-11 | 2016-06-01 | 衡阳市锦泰工具有限公司 | Hydraulic jack base convenient to maintenance |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110498361A (en) * | 2019-08-26 | 2019-11-26 | 成都道可道机械设备有限公司 | A kind of unidirectional oil inlet pipe and the jack with unidirectional oil inlet pipe |
| CN110498361B (en) * | 2019-08-26 | 2021-06-08 | 成都道可道机械设备有限公司 | One-way oil inlet pipeline and jack with same |
| CN112303046A (en) * | 2020-10-29 | 2021-02-02 | 平湖东来液压工具有限公司 | Hydraulic system of automobile repair platform |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170517 |
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| WD01 | Invention patent application deemed withdrawn after publication |